Intake Manifold Question

I was just thinking on this issue after reading this thread. Does anyone know what temperatures we get at the area of the head/manifold interface?

Left is a dual quad on top of which I plan to be running carbs with annular boosters which will give me smaller droplet size, and I _think_ that will allow the fuel to more readily soak up heat (greater surface are to volume ratio with smaller droplet size). Do I even want that though? I would rather avoid all the heat I can going into the intake manifold.

I was considering having those ports on the manifold welded up. I was also considering blocking off those passages with some JB Weld high temp putty. I'm gonna try the welding option first.


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You gotta admit, it's an excellent excuse to buy a TIG welder...
I also want to build up the outsides of the runners on the single plane OFFY and Dual plane Eddy (thanks to @rumblefish360) dual quads to be able to gasket match to the runners on some 308, Trick Flow or Eddy heads.

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